Fronius Symo 15.0-3-M Installation Instructions

Connecting solar module strings to the inverter
Safety
WARNING!
Danger due to incorrect operation and incorrectly performed work.
This can result in serious injury and damage to property.
▶
Only qualified staff are authorised to commission your inverter and only
within the scope of the respective technical regulations.
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Read the Installation and Operating Instructions before installing and com-
missioning the equipment.
WARNING!
Danger due to grid voltage and DC voltage from solar modules that are exposed
to light.
This may result in an electric shock.
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Ensure that both the AC side and the DC side of the inverter are de-ener-
gised before carrying out any connection work.
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Only an authorised electrical engineer is permitted to connect this equip-
ment to the public grid.
WARNING!
Danger due to grid voltage and DC voltage from solar modules.
This may result in an electric shock.
▶
The DC main switch is only to be used to de-energise the power stage set.
The connection area is still live when the DC main switch is switched off.
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Ensure that the power stage set and connection area are disconnected from
one another before carrying out any maintenance or service tasks.
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The power stage set, which is enclosed in a separate housing, must only be
disconnected from the connection area when in a de-energized state.
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Maintenance and servicing in the power stage set of the inverter must only
be carried out by Fronius-trained service technicians.
CAUTION!
Danger due to incorrectly tightened terminals.
This may result in heat damage to the inverter, which may lead to fire.
▶
When connecting AC and DC cables, ensure that all the terminals are
tightened to the specified torque.
CAUTION!
Danger due to overloading.
This may result in damage to the inverter.
▶
Fronius Symo: The maximum amperage when connecting to a single DC ter-
minal is 33 A.
▶
Fronius Eco: The maximum amperage when connecting to a single DC ter-
minal is 15 A.
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Connect the DC+ and DC- cables to the DC+ and DC- terminals on the in-
verter, taking care to ensure that the polarity is correct.
▶
Observe the maximum DC input voltage.
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EN

Fronius Symo 15.0-3-M Specifications

General

Max. efficiency	98.1%
Max. input voltage	1000 V
MPPT voltage range	200 - 800 V
Weight	34.8 kg
Protection rating	IP 66
Max. output current	21.7 A
AC nominal voltage	400 V
AC voltage range	320 - 480 V
Frequency	50 / 60 Hz
THD	< 3%
Number of MPP trackers	2
AC Frequency Range	50 / 60 Hz
Maximum Efficiency	98.1%
Warranty	5 years
AC nominal output	15000 W
Max. apparent AC power	15 kVA
Maximum AC Power	15000 VA
Maximum DC Power	22500 W
Operating Temperature Range	-25 to +60 °C
Max. input current	30 A
Max. input current (Idc max)	30 A
Cooling	Forced air cooling